The dose-response data broke down as follows: 1mg dose: 8.7% average weight loss at 48 weeks 4mg dose: 15.2% average weight loss at 48 weeks 8mg dose: 21.1% average weight loss at 48 weeks 12mg dose: 24.2% average weight loss at 48 weeks Placebo: 2.1% average weight loss at 48 weeks The week-by-week progression told an equally compelling story
For a broader look at what B12 does beyond energy including its role in nerves, methylation, and brain health see our complete vitamin B12 benefits guide
The National Institutes of Health recommend the following daily dosage of vitamin B12: Birth to 6 months: 0.4 micrograms Infants 712 months: 0.5 micrograms Children 13 years: 0.9 micrograms Children 48 years: 1.2 micrograms Children 913 years: 1.8 micrograms Teens 1418 years: 2.4 micrograms Adult men and women 1850 years: 2.4 micrograms Adult men and women over 50 years: 25250 micrograms Women who are pregnant: 2.6 micrograms Women who are breastfeeding: 2.8 micrograms Adults over the age of 50 are at a greater risk of vitamin B12 deficiency because they tend to produce less stomach acid, which is needed to convert the vitamin properly
B-12 injections bypass the digestive system entirely
Well, no-deal is looking unlikely
Una Hopkins, RN, FNP-BC D et al (2013) Large-volume IM injections: a review of best practices
